Naked Motorcycles

2021Zero SR-F

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The 2021 Zero SR-F is an electric naked streetfighter for riders who want instant torque and minimal maintenance. It produces 190 Nm through a twist-and-go drive, with a 787 mm seat, ABS and a 200 km/h top speed.

Capacity: Not on record
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Engine: Not on record
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Gearbox: Not on record
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Wet weight: 220.0 kg
Seat height: 787 mm
Power: 53.6 HP (40.0 kW) @ 5000 RPM

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Other years 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering78%

City riding80%

Daily riding75%

Touring55%

Two-up55%

Track55%

Best for: Built for punchy urban and suburban riding with strong stoplight-to-stoplight acceleration, this bike rewards those who want a quiet, low-maintenance sport-naked with genuine performance credentials.
Built for: Silent, torque-heavy, and immediate, it delivers a futuristic riding experience where power arrives instantly with no gear shifts or engine noise to manage.
Not ideal for: Not for riders planning long multi-day tours or off-road excursions, since range limitations and street-only tires and suspension make it unsuited to those uses.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 787mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2021 Zero SR-F, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and charging costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's claimed range and battery size. Real-world figures depend on how and where you ride, speed and temperature. Prices shown greyed are examples - type your own.

Full specifications

Engine

Power: 53.6 HP (40.0 kW) @ 5000 RPM
Torque: 190.0 Nm (19.4 kgf-m)
Power/weight ratio: 0.2436 HP/kg (wet)
Cooling system: Air
Starting: Electric
Battery Capacity: 12.5 kWh
Motor Type: Radial flux, permanent high-temp magnet, brushless motor
Rated Power (continuous): 40.0 kW (53.6 hp)
Range: 259 km (161 miles)
Peak Power: 82.0 kW (110.0 hp)
Charge Time: 7.9 hours
Capacity:: Not on record - add it

Transmission

Transmission type: Automatic
Final drive: Belt
Clutch: Clutchless direct drive

Performance

Top speed: 199.6 km/h (124.0 mph)
0-60 mph: 3.70 seconds

Dimensions & weight

Wheelbase: 1450 mm
Seat height: 787 mm
Wet weight: 220.0 kg
Dry weight: Not on record - add it

Chassis & suspension

Frame: Steel-trellis
Front suspension: Showa 43 mm inverted cartridge forks, with adjustable spring preload, compression and rebound damping
Rear suspension: Showa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression and rebound damping
Front wheel travel: 120 mm
Rear wheel travel: 140 mm
Rake (fork angle): 24.5°
Trail: 94 mm

Brakes & wheels

Front brakes: Single disc. ABS. Floating discs. Two-piston calipers.
Front brakes diameter: 320 mm
Rear brakes: Single disc. ABS. Single-piston caliper.
ABS: Yes
Front tyre: 120/70-17
Rear tyre: 180/55-17

Other

Color options: Red, Grey
Warranty: 24
Comments: Weight shown is for the Standard model (220 kg kerb). The Premium model weighs 226 kg.
Comments: Range up to 161miles. 7.9 hour charging. Lithium Ion 12.5 kWh battery. Various battery options called ZF13.0 and ZF13.0 + Power Tank.

Specs last verified against published sources: October 2026.